Using homicide rates as an indicator, this article examines the ecological factors that might be functioning as stressors in the environment of thirty-four East African tribes. A series of hypotheses dealing with the relationships between these stressors and tribal levels of aggressiveness are tested.

Using homicide rates as an indicator, this article examines the ecological factors that might be functioning as stressors in the environment of thirty-four East African tribes. A series of hypotheses dealing with the relationships between these stressors and tribal levels of aggressiveness are tested.

Using homicide rates as an indicator, this article examines the ecological factors that might be functioning as stressors in the environment of thirty-four East African tribes. A series of hypotheses dealing with the relationships between these stressors and tribal levels of aggressiveness are tested.

Using a sample derived from the available folk tale literature, researchers test whether the salience of color terms in folk tales follow the evolutionary sequence put forth by Berlin and Kay (1969). Results support the hypothesis.

This study proposes ways in which the environment may affect behavioral and psychocultural processes. Results provide moderate support for a relationship between climate and emotional expressiveness.

This article examines the relationship between social structures and sexual jealousy. Results suggest that social structures that emphasize the importance of pair-bonding, progeny, personal property, and exclusive marital sex relations are associated with sexual jealousy in males.

Examines the cross-cultural correlates of belief in a high god or supreme creator. The results are compared to and found to be inconsistent with the theoretical perspectives of Swanson (1960) and Durkheim (1912).

Examines the cross-cultural correlates of belief in a high god or supreme creator. The results are compared to and found to be inconsistent with the theoretical perspectives of Swanson (1960) and Durkheim (1912).

This article uses two dependent variables: acceptance of polygyny (the rules) and and the percentage of women in polygynous marriages (the behavior). The rules of marriage are best predicted by social structural variables (e.g. warfare, fraternal interest groups) whereas actual marriage behaviors are best predicted by economic and ecological variables (e.g. climate zone). Deemphasizing exclusively reproductive or economic explanations for polygyny, the authors find polygyny is related to male-oriented kin groups, territorial expansion and migration, and marrying war captives. Polygyny is thus thought to have a stratifying effect on women and is ultimately a detriment to female status.

This study proposes ways in which the environment may affect behavioral and psychocultural processes. Results provide moderate support for a relationship between climate and emotional expressiveness.